Gemma 1 2B and Grok Code Fast 1 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Gemma 1 2B, from Google, has a 8,192-token context window and is priced by the provider serving it on OpenRouter.
Grok Code Fast 1, from SpaceXAI, has a 256,000-token context window and is priced by the provider serving it on OpenRouter.